Cutting apparatus for mowers



(No Model.)

G. W. BRADPGRD.

CUTTING APPARATUS POR MOWBRS.

Patented Mar. 29, 1887 WITNESS/:"8

iinrrnn STATES PATENT @risica CHARLIE- W. BRADFRD, OF THORNDIKE,ASSIGNOR Ol? ONE-HALF TO GEORGE F. TERRY, OF UNITY, MAINE.

CUTTING APPARATUS FOR MOVE/ERS.

SPECIFICATION forming part of Letters Patent No. 359,992, dated March29, 1887.

(No model.)

T0 aZZ whom it may concern:

Beit known that i, (Ennemis W. BRADFORD, of Thorndik c, in the county ofWaldo and State ot' Maine, have invented certain new and usei'ulImprovements in Cutting Apparatus for Mowers; and I do hereby declarethe following to be a l'ull, clear, and exact description of the inveniion, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to the cut-ting appa ratus of mowers, Sic.; and theobjects of my invention are to produce a cut-ting apparatus in which theteeth shall operate to draw the stems of grass or other vegetationinward between the lingers, and in which the cutters or blades shall bereadily removable for grinding and replacement, but also separable, seasto simplify the operation ol' grinding or sharpening.

To the above purposes my invention consists in certain peculiarvandnovel features oi" construction and arrangement, as hereinafterdescribed and claimed.

In order that my invention may be fully understood, I will proceed todescribe it with reference to the accompanying drawings, in which-Iiigure lis a plan view ofthe cut-ting apparatus. Fig. 2 is a transversevertical section of the same. Fig. Sisa view ol' one of the cuttersorblades detached. Fig. et is a view of one of the guardiingersdetached.

In the said drawings, A designates the cutter-bar, which is designed toreceive a longitudinal reciprocutory motion by the usual or anypreferred connections from the masterwhoel. This cutter-bar reciprocateswithin a slot, b, which. is formed longitudinally in thesupporting-frame B of the cut-ting mechanism of a mower or reaper, Uponthe under side of this frame I3 are secured, at their inner lo wer ends,a number of guard-lingers, C, as shown. Each of these guard-fingers ispointed at its outer end in the usual manner, and extends rearwardly, asshown at c, to its point of connectiou with the frame P. A shoulder, c',is formed at the inner end oi' each finger G, and across the upper sidesof each of said guardfingers, contiguous to their shoulders c', issccured a strip, c"`. Each guard-linger C is formed on its upper sidewith a rearward extension or guard, c3, so as to leave a recess, c, inwhich the cutter-teeth D reciprocate.

Each cutter-tooth Dis of triangular form, as shown, and has are-enforce, d, which is slotted at d at its inner end, and also has twoor more holes,d2 d, to receive pins c, which project from the upper sideof the strip ci. The cutter-bar A also carries a series of pins, a,extending from its upper side, and surrounded by anti-friction rollersc', which are embraced by the arms formed by the slots or recesses d' inthe inner ends ofthe reenforccs d of the cutters D.

E designates a shield, which is perforated to receive the ends ofthepins te, and also the en ds of pins a", nuts d being screwed upon theouter ends of some or all of the pins a a2 in order to secure thc shieldEin proper position. The shield E may be formed in one piece, orit maybe made in sections, each capable of being rcmovcd independently of theothers.

It will thus be seen that as the cutters vibrate pivotally beneath theextension or guard c of the guard-negers C they draw the stems of thegrass or other vegetation inward toward the frame B, instead of forcingthe stems outward, as has heretofore been the case. It will also be seenthat each cutter may be readily detached from the others and accuratelyground and replaced, or a new cutter may be readily inserted in place ofthe old one, Furthermore, when the cutters have become worn downsufficiently to cause them to cut imperfeet-ly, the cutter may beadvanced by shifting it to a hole, d3, for example, thus renewing itslife and saving the expense of a new cutter.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is A l. In a reaper or mower, the combination,with aseries ofguarttngers, of a series of pivoted cutters, each havinga series of bearings or points for connection with the ngerbar, wherebythe cutters can be moved forward when worn, substantially as set forth.

2. In a reaper, the combinatiomwith aseries of guard-fingers, of aseriesof pivoted cutters, each having a series of bearings or points for IOOconnection with the lnger-bar, whereby the In testimony whereof I havesignedl this xo cutters eau be moved forward when worn, and speoicatonin the presence of two subscribing a slotted rear end, and a. cutter-barhaving Witnesses. series of pins, which latter rest within the slots 5in the cutters, substantially as Set forth. CHARLES W. BRADFORD.

3. The combination, with a strip, c2, having pins c5 and guard-flugers,of the pvoted out! Vituesses: ters, each having two holes, d d, and acutter HENRY L. SHUTE, bar for vibrating the cutters. GEO. XV. TERRY.

